Yorkshire are still searching for their first First Division win of the season after losing by four wickets to Somerset at Headingley today .

The hosts, who drew their first four matches of this campaign, were undone by a decisive early stand from Marcus Trescothick and Justin Langer, who made 78 and 46 respectively as Somerset began the final day on 88 for one, chasing a target of 296.

The visitors wobbled briefly after these two were out either side of James Hildreth to leave Somerset on 179 for four but an unbeaten 70 from Zander de Bruyn steered them towards a first victory of the season. Yorkshire, meanwhile, remain in the relegation zone having now gone more than a year without a Championship win.

Nottinghamshire moved into top-spot with a 191-run victory over Hampshire at the Rose Bowl. Darren Pattinson took four for 53 as Hampshire began the final day needing 403 runs to win. There was ultimately little resistance with only James Vince (75) and Nic Pothas (63 not out) offering hope of a home triumph.

At New Road a stunning display by the Indian leg-spinner Piyush Chawla helped Sussex secure a 10-wicket win against Worcestershire. Chawla, who signed for Sussex only on the morning of the first day, took six for 152 and became the first player this summer to score a century and take five wickets in a four-day innings following his innings of 102 as Sussex declared their first innings on 620 for nine.

Worcestershire scored 392 to prevent an innings defeat but Michael Yardy and Chris Nash went on to secure the 61 runs Sussex needed to record their first win of the season.

In the Second Division Surrey also notched-up their first win of the summer after Chris Schofield took five for 40 to steer his side to victory over Northamptonshire by an innings and 95 runs. It was Schofield's second five-wicket haul of the season and helped restrict the hosts to 37 runs on the final day as they chased the 132 needed to make Surrey bat again. Northaants ended their second innings on 226.

Wavell Hinds hit an unbeaten 119 to help Derbyshire to a draw against Glamorgan at Derby. The hosts began the final day on 142 for six and, despite Robert Croft's four for 62, were able to declare on 294 for eight. That left Glamorgan needing 285 to win in too little time; they reached 136 for two.